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參數(shù)資料
| 型號(hào)： | M37545GC-XXXGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 19/65頁 |
| 文件大?。?/td> | 782K |
| 代理商： | M37545GC-XXXGP |
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Rev.1.07
Mar 19, 2009
Page 24 of 60
REJ03B0140-0107
7545 Group
Fig. 19 Interrupt sequence
Fig. 20 Timing of interrupt request generation, interrupt request bit, and interrupt acceptance
<Notes>
When setting the followings, the interrupt request bit may be set
to “1” .
<When setting the external interrupt active edge>
INT0 interrupt edge selection bit (bit 0 of Interrupt edge
selection register (address 3A16))
INT1 interrupt edge selection bit (bit 1 of Interrupt edge
selection register)
Key-on wakeup edge selection register (address 1916)
If it is not necessary to generate an interrupt synchronized with
these settings, take the following sequence.
(1) Set the corresponding enable bit to “0” (disabled).
(2) Set the interrupt edge selection bit (the active edge switch
bit) or the interrupt source bit.
(3) Set the corresponding interrupt request bit to “0” after one
or more instructions have been executed.
(4) Set the corresponding interrupt enable bit to “1” (enabled).
φ
SYNC
RD
WR
Push onto stack
Vector fetch
Address bus
Data bus
Execute interrupt
routine
PC
S,SPS
S-1,SPS S-2,SPS
BL
BH
AL,AH
Not used
PCH
PCL
PS
AL
AH
SYNC : CPU operation code fetch cycle
(This is an internal signal that cannot be observed from the external unit.)
BL, BH: Vector address of each interrupt
AL, AH: Jump destination address of each interrupt
SPS
: “0016” or “0116”
([SPS] is a page selected by the stack page selection bit of CPU mode register.)
T1
(1) The interrupt request bit for an interrupt request generated during period 1 is set to “1” at timing point IR1.
(2) The interrupt request bit for an interrupt request generated during period 2 is set to “1” at timing point IR1 or IR2.
The timing point at which the bit is set to “1” varies depending on conditions. When two or more interrupt
requests are generated during the period 2, each request bit may be set to “1” at timing point IR1 or IR2
separately.
T1 T2 T3 : Interrupt acceptance timing points
IR1 IR2 : Timings points at which the interrupt request bit is set to “1”.
Note : Period 2 indicates the last
φ cycle during one instruction cycle.
IR1 T2
SYNC
IR2 T3
12
Internal clock
φ
Instruction cycle
Push onto stack
Vector fetch
Instruction cycle
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37545GFGP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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| M37546G2GP | 功能描述:MCU 2/5V 8K 32-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
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